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diff --git a/tiger-compiler/src/ast/array-exp.hh b/tiger-compiler/src/ast/array-exp.hh
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+++ b/tiger-compiler/src/ast/array-exp.hh
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+/**
+ ** \file ast/array-exp.hh
+ ** \brief Declaration of ast::ArrayExp.
+ */
+
+#pragma once
+
+#include <ast/exp.hh>
+#include <ast/name-ty.hh>
+
+namespace ast
+{
+  /// ArrayExp.
+  class ArrayExp : public Exp
+  {
+  public:
+    /** \name Ctor & dtor.
+     ** \{ */
+    /// Construct an ArrayExp node.
+    ArrayExp(const Location& location, NameTy* type_name, Exp* size, Exp* init);
+    ArrayExp(const ArrayExp&) = delete;
+    ArrayExp& operator=(const ArrayExp&) = delete;
+    /// Destroy an ArrayExp node.
+    ~ArrayExp() override;
+    /** \} */
+
+    /// \name Visitors entry point.
+    /// \{ */
+    /// Accept a const visitor \a v.
+    void accept(ConstVisitor& v) const override;
+    /// Accept a non-const visitor \a v.
+    void accept(Visitor& v) override;
+    /// \}
+
+    /** \name Accessors.
+     ** \{ */
+    /// Return identifier of the stored elements type.
+    const NameTy& type_name_get() const;
+    /// Return identifier of the stored elements type.
+    NameTy& type_name_get();
+    /// Return size of the array.
+    const Exp& size_get() const;
+    /// Return size of the array.
+    Exp& size_get();
+    /// Return initial value assigned to all elements of the array.
+    const Exp& init_get() const;
+    /// Return initial value assigned to all elements of the array.
+    Exp& init_get();
+    /** \} */
+
+  protected:
+    /// Identifier of the stored elements type.
+    NameTy* type_name_;
+    /// Size of the array.
+    Exp* size_;
+    /// Initial value assigned to all elements of the array.
+    Exp* init_;
+  };
+} // namespace ast
+#include <ast/array-exp.hxx>